We use the preposition “with” with the adjective ”concurrent”. The meaning of concurrent is “happening at the same time” or “agreeing with something”.
The concurrent event is happening at the other stage.
Concurrent with the launch, we will be serving drinks in the lobby.
We use the preposition “with” with a verb or adjective when we mean “in relation to”. We only use “concurrent with” when we are not directly describing the noun. Rather, we are using the structure “to be+concurrent + with”.
The meeting is concurrent with the conference.
There is also a structure that exists where we use “concurrent with” at the beginning of a sentence.
Concurrent with the signing of the player, the club have also promised to build a new stadium.
This form of English is very formal and would never be used in spoken English.
Concurrent + no preposition
We don’t need to use the preposition when we directly describe a noun.
Where is the concurrent event taking place?
We use “concurrent to” with the meaning of agreement.
The punishment is concurrent to the crime.
We don’t use the preposition “in” with “concurrent” but there might be a situation where you need to use the preposition in relation to the noun that follows ”concurrent”.
The event is taking place concurrently in seven different countries.
There may be many situations where you don’t need a preposition with “concurrent” like when you directly describe a noun. When you want to connect one event with another, you should use the preposition “with”.